Since the mass production of single-chip fireproof glass in China, fireproof glass has been widely used, but there are several points to be aware of when using it:
1. Before selecting fireproof glass, it is necessary to first understand the specific fire protection requirements of fireproof components composed of fireproof glass, whether it is fireproof, heat insulation or smoke insulation, fire endurance requirements, etc.
2. Monolithic and composite infusion fireproof glass cannot be cut with a glass cutter like ordinary flat glass, and must be cut to length, but composite (dry) fireproof glass can meet the requirements of cutting.
3. When using fireproof glass to form a fireproof component, in addition to considering the fireproof durability of the glass, its support structure and various elements must also meet the fire resistance requirements.
The monolithic cesium-potassium fire-retardant glass is subjected to special chemical treatment for more than 20 hours of ion exchange at a high temperature, replacing the metal sodium on the glass surface to form a low-expansion silicate glass with an expansion coefficient of 1.8*10-6/0F. (3.24*10-6/K), so it has high heat resistance. At the same time, after physical treatment, high compressive stress is formed on the surface of the glass, which greatly improves the impact strength. When the glass breaks, it shows a state of tiny particles, reducing the The human body causes damage! The strength of a single piece of yttrium-potassium fire-resistant glass is 6-12 times that of ordinary glass and 1.5-3 times that of tempered glass!
China's building code requires that all products installed on the cut with fire protection requirements should be sampled by the provincial fire brigade to the national designated fireproof material testing center (ie Sichuan and Tianjin two national fireproof building materials quality supervision and inspection center One) to carry out the test, must meet the requirements of the specification, and obtain the inspection report issued by these institutions before they can be sold!
The fire resistance test of single-piece cesium-potassium fire-retardant glass is carried out according to the current national standards, and has been tested to meet the specifications of the People's Republic of China National Standard GB15763.1-2001 "Safety Glass Fireproof Glass for Construction".
The advantage of a single piece of yttrium-potassium fire-resistant glass is that it has a relationship with the temperature at which it can work, but it has the ability to withstand the rapid changes in heat shock and grace, depending on the specific heat capacity of the glass (which affects the rate of temperature rise) ), thermal conductivity (rate and distribution of heat through the glass) and thermal expansion rate, while a single piece of cesium-potassium fire-resistant glass can withstand quenching from 300 ° C to cold water!
The thermal conductivity of monocrystalline yttrium-potassium fire-resistant glass is 1.13W/M°C
The thermal expansion rate of single piece of strontium potassium fireproof glass is: 3*10-6/°C
Water resistance meets: ISO719-HGB, ISO720-HGA standard
Acid resistance meets: ISO1776 standard
Alkali resistance meets: ISO695-A standard
Compared with the traditional grouting fireproof glass, the single piece of strontium potassium fireproof glass has the highest characteristics in addition to high strength and easy installation. The high temperature resistance of chemical grouting fireproof glass is not only in the process of production, but also in ultraviolet radiation and flame. It quickly became milky white and lost the basic function of glass transparency, so that it could not observe the fire! The single piece of yttrium-potassium fire-proof glass remained transparent under the action of ultraviolet light and flame without any change!
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